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Full text of "Apple Manual: PowerBook G4 17 133"

Service Source 




PowerBook G4 (17-inch 1.33GHz) 



16 September 2003 



© 2003 Apple Computer, Inc. All rights reserved. 



Service Source 




Take Apart 



PowerBook G4 (17-inch 1.33GHz) 



© 2003 Apple Computer, Inc. All rights reserved. 




General Information 




Overview 

Some key features that distinguish this computer from the previous 17-inch PowerBook: 





PowerBook G4 (17-inch 
1.33GHz) 


PowerBook G4 (17-inch) 


Microprocessor 


1.33GHz 


1GHz 


L2 Cache (on-chip) 


512K 


256K 


Graphics Chip 


ATI Mobility Radeon 9600 


nVidia GeForce4 420 


USB 


2.0 


1.0 


SuperDrive 


2x DVD write 


1x DVD write 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 1 



New Procedures 

Flex cable compatibility 

The sound and modem flex cables are not interchangeable with the original PowerBook 
G4 (17-inch) system. The main logic board will be damaged. The correct flex cables have 
the word "POWERBOOK G4 17" 1 .33GHZ ONLY." 

No L3 cache 

L3 cache is not used on this system. So unlike the previous model, there is no blue 
thermal pad on the logic board facing the keyboard. 

Thermal module interface 

Thermal gel is now used on the ATI Mobility Radeon 9600 graphics chip as well as the 
Intrepid chip. The thermal module is different from the previous 17-inch PowerBook. It has 
a different interface feature for the graphics chip and now has three heat pipes instead of one. 

Important Notes 

• If a flex connector has a plastic film located on the top that can be lifted up on one 
side, use it to carefully pull up and wiggle the connector from side to side to disconnect 
it. Otherwise rock the connector from side to side to disconnect. 

• The AirPort Extreme card assembly has a flex cable glued to the card, making it 
unique and specific to this computer. 



Tools 

The following tools are recommended for the take apart procedures. 
ESD wrist strap and mat 
Soft cloth 

#00 Phillips screwdriver (magnetized) 
#0 Phillips screwdriver (magnetized) 
#1 Phillips screwdriver (magnetized) 
4 mm socket wrench 
Needlenose pliers 
Torx T6 screwdriver 
Torx T8 screwdriver 
Razor knife 

Black stick (nylon probe tool 922-5065) (or other nonconductive nylon or plastic flat- 
blade tool) 

Multi-compartment screw tray (such as a plastic ice cube tray) 
Kapton® tape 

Voltmeter (for troubleshooting) 
Small low-power magnet (for troubleshooting) 
Apple Pro keyboard and mouse (for troubleshooting) 

PowerBook G4 (17-inch 1.33GHz) Take Apart 



Serial Number Location 

The serial number is located in the battery bay. 

■ 




PowerBook G4 (17-inch 1 .33GHz) Take Apart - 3 



Zero Insertion Force Connectors 

Zero insertion force (ZIF) connectors are used in several locations in the computer. 

Important: The locking bar on the ZIF connector is extremely fragile and is not intended to 
separate from the connector. When releasing a bar, use extreme care and a restrained 
light pressure to move the bar only slightly. 

Warning: If a locking bar breaks, you will need to replace the board. 




To release the flex cable 

Use a flat-blade tool to move the bar on both sides. 





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4 - PowerBook G4 (17-inch 1.33GHz) Take Apart 



To connect a flex cable 

Make sure the locking bar is released, then slide the end of the flex cable all the way into 
the connector. Hold the cable in place, then slide the locking bar into the connector on 
both sides to secure. 

Important: Verify that the cable is straight. Use either the alignment mark, if present, or 
the metal edge on the cable as a guide to ensure the cable is straight. 

Warning: If the flex cable is inserted crooked, some signals may not be connected 
or signals may short together (a bad connection is shown below.) 




Note: If a cable is not securing properly, verify that it is inserted on the correct side of the 
locking bar. 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 5 




Feet 



Tools 

This procedure requires the following tools: 

• Foot kit 

• Tweezers or needlenose pliers 

• Soft cloth 



Preliminary Step 

Before you begin, check the bottom case of the computer and compare it with the images 
in this table. Make sure the foot you want to replace has an intact plug on the bottom case. 



Plug Area on Bottom Case 



Matching Foot 



Action 



Missing plug 




Not available for 
replacement 



Replace the bottom 
case, or send the 
computer to the Apple 
Repair Center for 
repair. 



Plug (either one) 



Foot 






__U 



Continue with the 
procedure, matching 
the replacement foot to 
either plug on the 
bottom case. 



6 - PowerBook G4 (17-inch 1.33GHz) Take Apart 



Feet 



Procedure 

Warning: The glue used in this procedure can bond instantly to skin. Do not touch the 
glue. In the event of contact, review the safety instructions at the end of this section. For 
additional information, refer to the glue manufacturer: 

Elmer's Products, Inc. 
Columbus, OH. 43215-3799 
www.krazyglue.com 

1 . Place the computer upside down on a clean, lint-free cloth or other nonabrasive 
surface. 

2. Make sure the plug area on the bottom case is clean. If any portion of the soft rubber 
foot remains, remove it so that only the hard plastic plug is visible (as shown with both 
types of plugs below). 




■ . * 



Important: Notice the recessed hole in the center of the plug. When positioning the 
foot, make sure the raised bump on the textured plane of the rubber foot fits into the 
center hole in the plug. This ensures a balanced and level fitting. 




Feet 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 7 



Warning: GLUE IS AN EYE AND SKIN IRRITANT. BONDS SKIN INSTANTLY. Do not 
touch the glue at any time. Before opening the glue, review the safety instructions at 
the end of this section. 

Important: The glue tube included in the kit is sealed until first use. Do not break the 
seal until you are ready to use the glue. To break the seal, hold the tube upright and 
away from you. Place the hollow nozzle cap on the tube and tighten it all the way 
down. The tube is then ready to dispense the glue through the nozzle cap. 




4. Apply one drop of glue to the plug on the bottom case. Do not spread the glue. 

5. Using tweezers or needlenose pliers, carefully position the new foot so it is centered 
over the plug, and its integral bumps fit into the compatible holes in the plug. 

6. Using the end of the tweezers or pliers — not your finger — lightly press and hold the 
foot in place for 30 seconds. 




7. Before turning over the computer, allow the glue to set for at least 15 minutes. 

8. Discard the tube of glue. 

SAFETY INSTRUCTIONS: GLUE IS AN EYE AND SKIN IRRITANT. BONDS SKIN 
INSTANTLY. Contains ethyl cyanoacrylate. Avoid contact with skin and eyes. If eye or 
mouth contact occurs, hold eyelid or mouth open and rinse thoroughly but gently with 
water only for 15 minutes and GET MEDICAL ATTENTION. Liquid glue will sting eye 
temporarily. Solidified glue may irritate eye like a grain of sand and should be treated by an 
eye doctor. If skin bonding occurs, soak in acetone-based nail polish remover or warm 
soapy water and carefully peel or roll skin apart (do not pull). Contact through clothing may 
cause skin burn. If spilled on clothing, flush with cold water. Avoid prolonged breathing of 
vapors. Use with adequate ventilation. KEEP OUT OF REACH OF CHILDREN. 



8 - PowerBook G4 (17-inch 1.33GHz) Take Apart 



Feet 




Battery 



Tools 

This procedure requires the following tools: 
• Soft cloth 



Part Location 



— 




Preliminary Steps 

Warning: Always shut down the computer before opening it to avoid damaging its 
internal components or causing injury. After you shut down the computer, the 
internal components can be very hot. Let the computer cool down before 
continuing. 



Battery 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 9 



Procedure 

Warning: If the computer has been recently operating, allow it to cool down before 
performing this procedure. 

1 . Shut down the computer. 

2. Disconnect the power cord and any other cables connected to the computer. 

3. Place the computer face down on a soft cloth. 

4. Slide both battery latches away and lift the battery out of the battery bay. 




10 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Battery 




Memory Door and 
Memory Cards 



Tools 

This procedure requires the following tools: 

• Soft cloth 

• #0 Phillips screwdriver 

Part Location 




Preliminary Steps 

Before you begin, remove the battery. 



Memory Door and Memory Cards 



PowerBook G4 (1 7-inch 1 .33GHz) Take Apart - 1 1 



Procedure 

Warning: If the computer has been recently operating, allow it to cool down before 
performing this procedure. 

1 . Place the computer face down on a soft cloth. 

2. Remove the three screws from the memory door. 

Note: Check for lost screws caught by magnets inside the front edge of the battery well. 




3. Lift the memory door up slightly and slide it straight back to remove. 




12 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Memory Door and Memory Cards 



Note: If only one memory card is installed, it's factory installed in the top memory slot 
(nearest to outside edge of the computer). 

4. To remove either memory card, first release it by spreading apart the tabs in the 
memory slot from the notches in the card until the card pops up slightly. 




5. Pull the card straight out of the memory slot. 




Memory Door and Memory Cards 



PowerBook G4 (17-inch 1.33GHz) Take Apart - 13 



6. Align the notch in the board with the tab in the slot and insert the replacement memory 
cards at a 30-degree angle, pushing the card firmly until fully seated. 




7. Check that the notches in the card clear the tabs as you press down on the sides of 
the card to lock it into place. 



■ ■* 







14 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Memory Door and Memory Cards 



To reinstall the memory door, hold it at a low angle to the battery bay and slide it in 
under the back edge, then lay it flat. If the door springs up and does not lay flat without 
tension, remove it and reinstall at a lower angle. 




Memory Door and Memory Cards 



PowerBook G4 (17-inch 1.33GHz) Take Apart - 15 



9. Install the memory door screws. 

Note: Before securing, check that the door edge rests flush and inside the ridge. 








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S\ 



10. Replace the battery. 

1 1 . Use Apple System Profiler to verify that the memory is recognized. (Choose the menu 
bar Apple logo ( ) > About This Mac, click More Info..., select the System Profile tab, 
open the Memory Overview.) 



16 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Memory Door and Memory Cards 




Top Case 



Tools 



This procedure requires the following tools: 
#0 Phillips screwdriver (magnetized) 
#1 Phillips screwdriver (magnetized) 
Torx T8 screwdriver (magnetized) 

Black stick (or other nonconductive nylon or plastic flat-blade tool) 
Soft cloth 
Multi-compartment screw tray (21 screws to remove the top case) 



Part Location 




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Top Case 



PowerBook G4 (17-inch 1.33GHz) Take Apart - 17 



Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Memory door 

• Lower memory card (nearest to battery bay), if present 

Procedure 

Note: This procedure removes the top case and keyboard assembly. The keyboard is 
attached to the top case and is not removed. 

1 . Place the computer face down on a soft cloth. 

2. Remove the three screws inside the battery bay. 

Note: These screws are shorter than on the memory door. Use care not to lose the 
screws into holes along the battery bay. 

Note: Check for lost screws caught by magnets inside the front edge of the battery well. 

3. Remove the five screws along the back edge (the two outside screws are longer and 
have "shoulders"). 

4. Remove the two screws on the logic board. 



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12.4mm 12.4mm 12.4mm 15.1mm 



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1.7mm 1.7mm 1.7mm 



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18 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



5. Locate the top case flex cable and ZIF connector. 




6. Very carefully disconnect and remove the cable from the connector. 

Important: The ZIF connector and locking bar are fragile and can easily break if too 
much force is used. (See "Zero Insertion Force Connectors" heading.) 




Top Case 



PowerBook G4 (17-inch 1.33GHz) Take Apart - 19 



7. Open the display and place the computer on its side. 

8. Remove four side screws from both sides. 



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20 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



9. Turn the computer over. 

10. Pull up on the top case along the sides and front until it releases. 




Note: A black stick inserted and twisted under the top case seam may be helpful. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 21 



Replacement Procedure 

Note: If replacing the top case, remove the keyboard and transfer it to the replacement top 
case. 

1 . Visually check to verify that all cables (highlighted below) are connected and routed 
correctly with nothing raised up or incorrectly over a component. 







2. Check perimeter wiring, where shown, to verify that it will not be caught or pinched by 
the top case during replacement. 




22 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



3. Check that display cable brackets are properly seated and secured with screws. 




Verify that cables for Bluetooth, AirPort Extreme, inverter and power cable from the 
DC-in board are routed and seated correctly in channels around the left speaker. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 23 



Verify that the LVDS cable's metal bead fits into the metal channel (rounded side up so 
that its teeth secure it) and that the cable is secured into the channel along the right 
speaker. 




6. Verify that the sleep LED wires route over the notch in the frame (secure with Kapton 
tape) and along the inside channel away from the front edge so that it will not be 
damaged when replacing the top case. 




24 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



7. On the top case, check cable connections and routing. 




IS 



8. Check that the perimeter metal tabs are not bent. 

Note: Do not bend the tabs; the metal quickly fatigues and can break off easily. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 25 



9. Lay the top case upside down and locate the flex cable. 

10. While pulling the cable up, run a finger along its base to crease it at a 90-degree 
angle. 




1 1 . The cable should point straight up. 




26 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



12. Open the display to 90-degrees and tilt the computer back so it rests on the back of 
the display. 

13. Guide the top case flex cable through the slot between the logic board and the bottom 
case frame. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 27 



Note: For the following procedures, you will want to keep the top case close to the bottom 
case so the flex cable will not pull out of the slot. 

14. Turn the computer to rest on the bottom case. 

15. At the left front corner of the computer, insert the top case edges into the bottom case 
channels, shown. 




16. Hold the front of the top case along the front edge of the bottom case and lower into 
place. 




28 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



17. Note: If the tabs along the sides of the top case catch on the bottom case, use a 
narrow tool and work from front to back to carefully push or pull the tabs very slightly 
to help slide them into place. 

Important: The tabs are fragile. Do not apply too much pressure or bend them. 




Note: Some side screws have a flexible screw boss. If they block a tab from seating, 
use a narrow tool to push the boss slightly. 













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Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 29 



Important: The top case should lay flat along the sides and top, if not, make sure 
that cables and components are not interfering. 

Also, make sure it is not held up by one of the metal tabs protruding down from the 
top case. Carefully bend them slightly to fit if needed. 




18. Install the front and rear side screws on both sides to hold the top case in place. 





30 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



19. Carefully close the display, without forcing. If it does not close easily, reinstall the top 
case, checking for cable routing and clearances. 

20. Turn the computer over. 

21 . Check that the top case flex cable is still through the slot. If not, use the round shaft of 
a small Phillips screwdriver to carefully pull it through, as shown. 

Important: If the cable does not fully reach the ZIF connector, the cable is trapped 
under the frame. Reinstall the top case. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 31 



22. Carefully pull the locking bar of the ZIF connector out slightly. Slide the flex cable over 
the locking bar and into the connector until it stops (the metal edge of the cable should 
be parallel to the connector), then slide the locking bar in to secure it. 




23. Check for a gap, as shown below, between the top and bottom case at the back right 
side next to the hinge. This may indicate that the LVDS cable is trapped. 




32 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Top Case 



24. To check this, insert the flat-blade side of a black stick between the display and top 
case then push toward the bottom case to see if the gap can be closed. If so, proceed 
to next step. If not, remove the top case and check the routing of the LVDS cable, then 
reinstall the top case. 




25. Carefully install one of the "shoulder" screws in the end screw hole on the bottom. 

Important: If the screw does not go in easily do not force it or damage may result. 
Check the routing of the LVDS cable and reinstall the top case. 




Top Case 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 33 



26. Install the other "shoulder" screw in the end screw hole. 

27. Install the remaining side screws. 

28. Install the logic board screws. 

29. Install the remaining bottom screws along the back edge. 

30. Install the memory door, and screws. 

31 . Install the battery bay screws. 

32. Visually check the flatness of the top case. If it is not flat, remove it, fix the problem, 
then reinstall. 

33. Replace the battery. 

34. Testing the computer should include powering on, checking the keyboard and 
trackpad function, and operate the computer in a dimly lit room to check that the 
keyboard backlight is working. 



34 - PowerBook G4 (1 7-inch 1 .33GHz) Take Apart Top Case 




Keyboard 



Tools 

This procedure requires the following tools: 

• #0 Phillips screwdriver 

• Torx T8 screwdriver (or other blunt tool, 3.5mm wide or less) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 







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Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 



Keyboard 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 35 



Procedure 

1 . Turn the top case over, locate the keyboard flex cable and remove the Kapton tape 
holding the cable. 

2. Carefully release the locking bar of the cable's ZIF connector and pull out the cable. 




3. Locate and carefully peel off the insulator film over keyboard screws and reserve for 
reinstallation. 



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36 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Keyboard 



4. Remove remaining adhesive, if any, from the top case and screw heads. 

5. Remove the fourteen identical screws. 




6. Start at the power button side and use a blunt tool (no wider than 3.5 mm) to carefully 
push on the keyboard screw bosses through the boss holes to begin to release the 
keyboard from its adhesive. 

Important: To avoid damaging the screw boss threads, do not use a narrow tool that 
will fit into the screw hole. 




Keyboard 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 37 



7. Continue until the keyboard can be grasped, then carefully lift it up and guide out its 
flex cable (shown below). 





38 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Keyboard 



8. Carefully rub off any adhesive residue left in the keyboard well and on the fiber optics. 










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Keyboard 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 39 



Replacement Procedure 

1 . To install the keyboard or replacement keyboard, insert its flex cable through the slot in 
the top case and rest the bottom of the keyboard evenly along the bottom edge of the 
keyboard well. 

2. Remove the protective cover from the adhesive strips on the keyboard. While keeping 
the bottom of the keyboard flush along the bottom, lay the keyboard into place so that 
the screw bosses fit into the boss holes. 




3. Install the keyboard screws. 

4. Replace the insulator film, avoiding wrinkles or bulges. 

Important: The film must be installed and in the same location to protect against 
contact and electrical shorting in certain areas and to allow contact with the EMI 
spring on the logic board. 



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40 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Keyboard 



If replacing the existing keyboard, such as during a top case replacement, secure the 
end of the keyboard flex cable. (The cable inserts under the ZIF connector locking 
bar.) 

If installing a replacement keyboard, first remove the cable's adhesive protector, then 
turn the cable under itself (so the adhesive is on the inside of the loop but do not 
secure the adhesive). 

Secure the end of the keyboard flex cable into the ZIF connector. (The cable inserts 
under the ZIF connector locking bar.) 




Keyboard 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 41 



7. Fold the cable flat and secure it's adhesive by firmly holding the left side (to prevent 
cable movement) while sliding your right hand fingers forward on the right side. 




8. Use Kapton tape to secure the cable flat at the fold. 




42 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Keyboard 



9. Verify that the cable is still fully inserted, straight and secure in the connector. 

10. Turn over the top case and inspect the left and right sides of the keyboard. Push any 
Mylar down along the sides of the keyboard. 




1 1 . Reassemble the computer. 

12. Testing the computer should include powering on, checking the keyboard and 
trackpad function. 

In a darkened room, check for keyboard backlight function, and light leakage around 
the perimeter of the keyboard, speaker grill openings and side ports. 



Keyboard 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 43 




Hard Drive 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• #1 Phillips screwdriver (magnetized) 

Part Location 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 



44 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Hard Drive 



Procedure 

Important: Use the tab that can be lifted on the top of the connector on one side, if 
present, to carefully wiggle the connector from side to side to disconnect it. Otherwise, 
gently rock the connector from side to side to disconnect. 

1 . Remove the sound board flex cable. 

2. Disconnect the hard drive flex cable. 




3. Remove the four screws. 

4. Lift out the hard drive (guide the flex cable under the speaker cables if necessary). 



11.3mm 




Hard Drive 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 45 



5. Transfer brackets, side screws, rubber shockpads and the flex cable to the 
replacement hard drive. 




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6. Install the replacement hard drive, and reassemble the computer. 

Warning: Make sure the sound board flex cable has a label marked 
"POWERBOOK G4 17" 1.33GHz ONLY". 

7. Testing the computer should include powering on, checking that the hard drive is 
recognized, checking for sound from the speakers and that the sleep LED light works. 



46 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Hard Drive 




Sound Board 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• Hard drive 



Sound Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 47 



Procedure 

1 . Disconnect the speaker wires connector and sleep LED connector. 

2. Remove the two screws. 




3. Pull the sound board out starting at the ports end. 




48 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Sound Board 



Replacement Note: To prevent damage to the sleep LED wires during top case 
reassembly, verify that the wires route over the notch in the frame (secure with Kapton 
tape here and over connector) and then along the inside channel away from the front 
edge. 




4. Install the replacement sound board, and reassemble the computer. 

5. Testing the computer should include powering on, checking for sound from the 
speakers and that the sleep LED light works. The headphone and line in ports should 
be checked. 



Sound Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 49 




SuperDrive 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• #1 Phillips screwdriver (magnetized) 

Part Location 
















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Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 



50 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



SuperDrive 



Procedure 

Important: Use the tab that can be lifted on the top of the connector on one side, if 
present, to carefully wiggle the connector from side to side (sides indicated) to disconnect 
it. Otherwise, gently rock the connector from side to side to disconnect. 

1 . Disconnect the SuperDrive flex cable connector. 

Warning: Do not pull up on the end of the flex cable connector or the cable may 
separate from the connector. 

2. Remove the four screws. 

3. Carefully lift and guide the drive out. 

Important: Avoid pulling on the backup battery flex cable. 





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SuperDrive 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 51 



4. Transfer the flex cable, brackets and screws to the replacement SuperDrive. 




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5. Install the replacement SuperDrive, and reassemble the computer. 

6. Testing the computer should include powering on, inserting a CD and ejecting it to 
make sure the drive is aligned with the opening and functioning properly. 



52 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



SuperDrive 




Backup Battery Board 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• SuperDrive 



Backup Battery Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 53 



Procedure 

1 . Release the two ZIF connectors and remove the flex cable. 

2. Remove the three screws. 




3. Install the replacement backup battery board. 

4. Reassemble the computer. 

5. Testing the computer should include plugging in the power adapter and letting the 
backup battery charge for half an hour. Then power on the computer and disconnect 
the power adapter, set the system clock, put the computer to sleep, remove the main 
battery for five seconds and reinstall. The time should not reset. Also, check the right 
side USB port which is on the backup battery board. 



54 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Backup Battery Board 




Modem 



Tools 

This procedure requires the following tools: 

• 4 mm socket wrench 

• Needlenose pliers (helpful to reinstall hex nuts) 

Part Location 








o 






















■l 


-. 


" -=Ji 



Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

Warning: Make sure the modem flex cable has a label marked "POWERBOOK G4 
17" 1.33GHz ONLY". 



Modem 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 55 



56 - PowerBook G4 (1 7-inch 1 .33GHz) Take Apart Modem 



Procedure 

1 . Disconnect the modem flex cable. 

2. Remove the three hex nuts. 




3. Lift the modem up slightly and disconnect the RJ-1 1 cable connector. 




4. Install the replacement modem, and reassemble and test the computer. 



Modem 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 57 




PC Card Cage and 
AirPort Extreme Assembly 



Tools 

This procedure requires the following tools: 

• #0 Phillips screwdriver (magnetized) 

• Torx T6 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 




r 

















i 1 




'. L 





—J 



Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• Modem 



58 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



PC Card Cage and AirPort Extreme Assembly 



Procedure 

1 . Turn the computer over and remove the rubber gasket on the AirPort Extreme flex 
cable connector and reserve for reinstallation. Disconnect the connector. 




2. Turn the computer over and disconnect the PC card cage and hard drive flex cables. 




PC Card Cage and AirPort Extreme Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 59 



3. Pull out the coupling (joining the AirPort Extreme jumper and antenna cable) from the 
channel in the side of the left speaker. Grasp the coupling (not the wires) at both ends 
and pull to separate it at the middle. 




4. Remove two Phillips screws and two Torx T6 screws. 




V%^ : 



60 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



PC Card Cage and AirPort Extreme Assembly 



5. Important: The cross piece at the front end of the PC card cage is fragile. To avoid 
damage, do not touch this area while maneuvering the assembly. 

Lift up on the sides of the PC card cage assembly and carefully guide the AirPort 
Extreme card flex cable connector from under the logic board. 

Important: To avoid damage, do not allow the pins of the AirPort Extreme card cable 
connector to rub along the logic board. If the clearance is too tight, try slightly loosening a 
couple of the logic board screws on this side, but do not bend the board. If this doesn't 
work, the logic board will have to be removed to continue. 




6. Slide out the PC card cage eject button. 




PC Card Cage and AirPort Extreme Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 61 



7. Turn over the PC card cage to locate the AirPort Extreme card. 

8. Pull on the AirPort Extreme card flex cable to slide the card out of the PC card cage. 

Note: Wiggling the card from side to side slightly may help to release it. 




9. If replacing the AirPort Extreme card, pull the antenna jumper connector straight back 
to remove it. Transfer the cable extension to the replacement AirPort Extreme card. 



NH 




62 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



PC Card Cage and AirPort Extreme Assembly 



10. Install the AirPort Extreme card onto the PC card cage to be installed and reinstall the 
assembly. 

Replacement Note: Ensure that the pin on the PC card cage eject button is secured 
by the hole in the cage mechanism. 




1 1 . Reassemble the computer. 

12. Testing the computer should include inserting a PC card to check that it can be locked 
in and that the eject button works smoothly. Use Apple System Profiler to check that 
the AirPort Extreme card and modem are recognized. Test that the AirPort Extreme 
card is working and that the modem can dial out. 



PC Card Cage and AirPort Extreme Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 63 




Bluetooth 



Tools 

This procedure requires the following tools: 

• Torx T6 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case. 



64 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Bluetooth 



Procedure 

1 . Release the two ZIF connectors and move the flex cable aside. 

2. Disconnect the Bluetooth antenna cable. 

Replacement Note: Make sure the antenna cable is secured in the channel on the 
speaker. 




Bluetooth 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 65 



3. Remove the screw and Bluetooth board. 




4. Install the replacement Bluetooth board, and reassemble the computer. 

5. Testing the computer should include using Bluetooth to connect to another computer. 
Check the function of the DC-in port and the left USB port. 



66 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Bluetooth 




Speakers 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 




■P"fl ™ 






II 


EH 






m 


I^K!| 




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■ 




El / 


I 
















e*— — J 


j —at 



Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• Bluetooth board 



Speakers 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 67 



Procedure 

Note: Lift up any Kapton tape as necessary and reserve for replacement. 

1 . Pull wires out of routing channels on the left speaker. 

2. Remove one screw on each speaker. 





68 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Speakers 



3. Lift out speakers. 

4. Deroute the speaker wires along logic board. 

Replacement Note: Verify proper routing of speaker cables under securing clips. 




5. Disconnect the speaker wire connector from the sound board. 







6. Install the replacement speakers, and reassemble the computer. 

7. Testing the computer should include using the Sound system preference pane to test 
the left and right speakers. 



Speakers 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 69 




DC-In Board 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

Part Location 










o 




re 













^J 



Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• Left speaker 



70 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



DC-In Board 



Procedure 

1 . Disconnect the RJ-1 1 connector to the modem. 

2. Disconnect the power cable on the DC-in board. 

3. Remove the two screws. 




4. Insert a black stick under the DC-in board to help guide it out. 




DC-ln Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 71 



Replacement Note: Make sure that the replacement DC-in board includes the RJ-1 1 port 
and ambient light sensor cover. If not transfer them from the original board to the 
replacement board. 

The RJ-1 1 port slides off the DC-in board but may be very tight. It may be helpful to pull on 
the port until it begins to move, then use a black stick to create leverage behind the port. 




The ambient light sensor cover slides on and is attached with a screw from underneath the 
board. 




72 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



DC-ln Board 



5. Install the replacement DC-in board, and reassemble the computer. 

Note: Insert a black stick into the USB port opening to guide the board into place. 




6. Testing the computer should include using Bluetooth to connect to another computer. 
Check the function of the modem port, DC-in port and the left USB port. 



DC-ln Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 73 




Logic Board 



Tools 

This procedure requires the following tools: 

• Torx T8 screwdriver (magnetized) 

• 1600 watt hairdryer 

• Razor knife 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

• Thermal Pad Kit (076-1033) 

• T630 thermal gel (922-5929). 

Note: To organize the screws you remove from the computer, use a tray with divided 
compartments (such as a plastic ice cube tray). 

Part Location 










o 




Vi 







I 



74 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 



Preliminary Steps 

Before you begin run the computer until warm (if possible) to help soften the thermal 
materials on the logic board, then shut it down and remove the following: 

• Battery 

• Top case 

• SuperDrive 

• Right speaker 

Procedure 

Warning: Flexing of the logic board can break solder joints to chips. To prevent 
damage to the board, guard against flexing. 

1 . Turn the computer over. Disconnect the cables shown. 










Logic Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 75 



2. Turn the computer over. Disconnect the cables shown. 




3. Remove the twelve screws. 




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76 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 



Important: To prevent damage to the logic board chips, the thermal material between 
the logic board and the heatsink must be softened before removing the logic board. 

Use the following procedure: 

• Remove all memory cards and leave the memory door off. 

• Verify all screws have been removed. 

• Verify all cables are disconnected and moved away from the procedure area 
shown below. 

• Turn on a 1600 watt hair dryer and set it to high. Move the dryer back and forth 
continuously, left to right, about one second per cycle, over the area shown below, 
holding it about 20 mm (about 1-inch) above the board, for approximately one and 
a half minutes. (The temperature should reach approximately 75-80-degrees C 
(167-176-degreesF).) 

• After at least 45-seconds, and while continuing to move the hair dryer as described 
above, insert a black stick just under the left edge of the logic board, where shown 
below, and apply slight upward pressure (do not pry). Continue the hair dryer 
procedure along with the slight upward pressure on the board until the thermal 
material releases and the board moves up easily. 

• Once the thermal material has released, discontinue using the hair dryer. 

• Continue to the next step before the thermal material cools. 

Warning: Do not use a heat gun, or damage can result. 







Logic Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 77 



5. Lift the logic board from the left side and pivot along the port side. 

Note: The thermal material should easily release. If not, repeat the hair dryer 
procedure, above (verify that all the screws have been removed). Apply slow 
constant pressure until it releases, avoid over flexing. 

Warning: Do NOT flex the board. Give special attention at the narrow neck of 
the blower cutout. 




78 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 



6. Carefully coax the port end of the board out of the port openings. 

Note: The DVI connector may catch on the part of the frame shown here. Carefully 
maneuver it until it releases. 




Warning: To avoid flexing the logic board, hold the board vertically along the wide 
sides. Do not hold the board by the ends or by the narrow neck at the blower cutout, 
or horizontally, as the board's weight can cause excessive flex. 



Logic Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 79 



Replacement Procedure 

1 . Verify that the replacement logic board has EMI shields attached, as shown. If not, 
transfer the shields from the replaced board, or replace with a new shield kit. 




2. Use a black stick to remove all the original thermal material on the heatsink at all three 
mating surface locations shown below. 

3. Vigorously clean remaining residue and adhesive with an alcohol pad. 



■ iHP*' i ■** 






I I ■ ■ ■ ■ 1 ■ L L ■ 

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80 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 



Warning: Whenever the logic board is separated from the heatsink, you must 
remove all existing thermal material and install new thermal material to the heatsink 
at the three locations shown above. Failure to do so can cause the computer to 
overheat and be damaged. 

Important: Avoid unnecessary contact with thermal pads or gel, as dirt and body oils 
reduce the thermal pad's conductivity. 

If thermal pads have a backing material, remove one side before applying to the heatsink. 




Center that side over the mating surface (raised surface) and evenly apply it, without 
air pockets, by lightly pressing. Remove any remaining backing. (The picture shown 
is for illustration only.) 




Logic Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 81 



4. Center and install a new thermal pad onto the heatsink where removed, as shown 
below. 

Important: If the thermal pad kit includes two same-size pads, apply them, with the 
backing removed, one on top of the other as a double layer. 

5. Apply approximately 0.3 to 0.5 cubic centimeter (cc) of T630 thermal gel (922-5929) to 
the center of the center mating surface on the heatsink. 

Note: The 10 cc dispenser may be graduated in milliliters. A milliliter (ml) is the same 
as a cubic centimeter (cc). 

Note: To apply the thermal gel from the 10 cubic centimeter (cc) dispenser, remove 
the end cap and push the plunger until the gel reaches the front opening. Note the 
position of the end of the plunger in the tube. Dispense the gel until the plunger end 
moves about 1/3 to 1/2 of 1 cc (ml). The plunger will move back slightly when 
pressure is released, so push it slightly beyond the amount to be dispensed. 

6. On the right mating surface, apply approximately 0.3 cc's to each of the four outer 
corners and approximately 0.5 cc's to the center, as shown. 




82 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 



Important: With an razor knife, trim any excess thermal pad material, if any, that 
extends beyond the mating surface, to prevent it from touching holes in the heatsink. 





v 




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^^ ^j 







Note: After installing new thermal material, if you must briefly re-separate the logic board 
from the heatsink, it is OK to retain the same, new material, as long as they are not 
handled excessively. 



Logic Board 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 83 



7. If the logic board was removed to facilitate another procedure and will be reinstalled, 
also remove all the thermal material from each of the three corresponding chips 
(shown below) in the same manner. 

Important: Use extreme care not to damage the chips or logic board components. 




8. To replace the logic board, guide the port side into the port openings on the bottom 
case. Align the S-video port first. 

Note: Use care not to catch cables under the board as it is lowered into place. 

9. Attach the screws in the order shown. 

Note: The three screws replaced first have "shoulders" and use wavy washers. Make 
sure that the washers do not get caught under the shoulder of the screw when 
installing. 




10. Reassemble and test all ports, components and functions of the computer. 



84 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Logic Board 




Display Panel Assembly 



Tools 

This procedure requires the following tools: 

• Torx T6 screwdriver (magnetized) 

• Black stick (or other nonconductive nylon or plastic flat-blade tool) 

• 4 mm socket wrench (to install the pop-up spring torsion bar) 

Part Location 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 



Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 85 



Procedure 

Note: During these procedures, remove and reserve any Kapton tape for replacement, or 
replace with new tape during reinstallation. 

1 . Carefully disconnect the cable connectors shown. 




Pull out the coupling (joining the AirPort Extreme jumper and antenna cable) from the 
channel in the side of the left speaker. Grasp the coupling (not the wires) at both ends 
and pull to separate it at the middle. 




86 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



3. Carefully disconnect the Bluetooth cable connector. 




* 



Important: During the following procedures, take care that the small parts and screws do 
not fall inside the computer. 

4. Remove the screws that hold the wire brackets at both sides of the clutch barrel. 




Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 87 



5. Move the display to a 90-degree angle and remove the two screws for the end caps of 
the clutch springs on each side. 

Note: A 90-degree angle on the display helps to reduce the tension on the end 
pieces. 




6. Remove the two clutch cleat screws on each side of the clutch barrel. 

Important: Before removing the last screw, support the display so that it does not fall over. 




88 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



7. Lift off the display panel and clutch barrel assembly. 




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8. Remove the clutch spring end caps from both sides. 




Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 89 



9. Remove the two screws and torsion bar on each side. 




90 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



Replacement Procedure 

1 . To reinstall the display panel assembly, replace the end caps onto both clutch springs. 



_^%Ljrrrrrrrrnf 




2. At the back corners of the bottom case assembly, push the pop-up spring pins all the 
way back, on both sides. 





Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 91 



3. On the clutch, push the limit stop feet all the way back, on both sides. 




4. Lower the display panel assembly straight down onto the bottom case assembly. 




5. Verify that the limit stop feet, fit into the holes in front of the pop-up spring pins, on 
both sides. 




92 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



6. Install and tighten the screws for the clutch cleats, on both sides. 




7. Hold the display at a 90-degree angle and install the end cap screws on both sides. 




Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 93 



To install the pop-up torsion bars, insert the bar so that the notch is behind the pop-up 
spring pin and install the first screw furthest away from the pin. 




9. Then, use a sturdy hex nut driver to press the torsion bar down flat (this places tension 
on the pop-up spring pin) and install the second screw. Do this for both sides. 




94 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



10. Replace the wire bracket screws on both sides. 




1 1 . The left speaker has channels for Bluetooth, AirPort Extreme, inverter and the power 
cable from the DC-in board. Verify that the cables are routed and reconnected 
correctly. 

12. Reconnect the DC-in board and Bluetooth flex cable to the logic board. 




Display Panel Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 95 



13. Verify that the LVDS cable's bead fits into the metal channel and that the cable is 
secured into the channel along the right speaker. Then, reconnect the LVDS cable 
and verify that it does not go over the fan. 




14. To verify that the pop-up mechanism was installed correctly, first make sure there are 
no wires or parts to interfere, then carefully close the display until it latches. 

Push the display latch button and the display should pop-up slightly. 

Note: If not, one or both limit stop feet, next to the clutch cleats, were not inserted 
correctly. Loosen the screws for the end caps and clutch cleats enough to push the 
feet into place and reinstall. 




96 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Display Panel Assembly 



15. Reassemble and test the computer. 

16. Testing the computer should include the display panel. Use Bluetooth to connect to 
another computer and verify proper AirPort Extreme function. Check the function of 
the DC-in port and the left USB port. 



Display Panel Assembly PowerBook G4 (17-inch 1 .33GHz) Take Apart - 97 




Heat sink and Fan Assembly 



Tools 

This procedure requires the following tools: 
• Torx T8 screwdriver (magnetized) 

Part Location 




Preliminary Steps 

Before you begin, remove the following: 

• Battery 

• Top case 

• Left and right speakers 

• Logic board 

• Display panel assembly 



98 - PowerBook G4 (17-inch 1 .33GHz) Take Apart 



Heatsink and Fan Assembly 



Procedure 

Note: The Heatsink and fans are one assembly part. 

1 . Remove the screws and lift out the heatsink and fan assembly. 



B.9mm 



3.9rnrn , 




Important: Do not attempt to transfer fans from one heat sink to another. This can create 
acoustic issues. 

Replacement Note: Make sure to clean existing thermal material from the logic board and 
apply new thermal material (see Logic Board chapter). 

Important: If a replacement heatsink comes with thermal pads installed, you will only 
need to install Thermal Gel (922-5929) to the center mating surface of the heatsink. 

2. Reassemble and test all ports, components and functions of the computer. 



Heatsink and Fan Assembly 



PowerBook G4 (17-inch 1 .33GHz) Take Apart - 99 




Bottom Case Assembly 



Part Location 



'' 




Preliminary Steps 

Before you begin, remove the following: 
Battery 
Top case 
Hard drive 
Sound board 
SuperDrive 
Backup battery board 
Left and right speakers 
Modem 

PC card cage & AirPort Extreme assembly 
DC-in board 
Logic board 

Display panel assembly 
Heatsink and fan assembly 



100 - PowerBook G4 (17-inch 1.33GHz) Take Apart 



Bottom Case Assembly 



Procedure 

When all preliminary steps are performed, the bottom case is the part that remains. 

Verify that the following items are on the replacement bottom case, if not, transfer them 
from the bottom case being replaced, or install new: 

• EMI shields 

• Rubber gasket 

• Battery connector assembly 




1 . Reassemble and test all ports, components and functions of the computer, including 
battery operation. 



Bottom Case Assembly 



PowerBook G4 (17-inch 1.33GHz) Take Apart - 101 



Service Source 




Troubleshooting 



PowerBook G4 (17-inch 1.33GHz) 



© 2003 Apple Computer, Inc. All rights reserved. 




General Information 



Wire and Flex Cables 

With the very thin enclosure design and dispersed circuit board, a large number of flex 
cables are used in this computer. In addition, there are a variety of wire cable harnesses 
as well. Many of these cables carry multiple types of signals. In the case of the DC-in 
board flex cable; the cable is forked with one path going to the Bluetooth board and the 
other to the DC-in board. 

Here is a list of the cables and the signals that run across them. If you notice a group of 
functions not working, it is likely that the cable is not properly inserted or the connector is 
damaged. 

Warning: The Sound board and Modem flex cables must be marked with 
"POWERBOOK 17" 1.33GHz ONLY" or the logic board will be damaged. These 
cables are NOT interchangeable with cables from the PowerBook G4 (17-inch). 



Cable or Flex Cable Name 


Signal(s) Running Through It 


Bluetooth antenna cable (to diversity 
board in display panel assembly) 


Bluetooth radio signal 


AirPort Extreme antenna cable (to 
diversity board in display panel assembly) 


AirPort radio signal 


AirPort Extreme antenna jumper 


AirPort radio signal 


AirPort Extreme flex cable 


AirPort data / control 


Backup Battery flex cable 


Backup power 
Right USB 


Sound board flex cable 


Sound in 
Sound out 
Internal speaker 
Internal microphone 
Sleep light 


Speaker assembly cable 


Left speaker 
Right speaker 
Internal microphone 



General Information 



PowerBook G4 (1 7-inch 1 .33GHz) Troubleshooting - 1 



Cable or Flex Cable Name 


Signal(s) Running Through It 


DC-in board cable (to logic board) 


Power to system and main battery 


DC-in board flex cable 


Bluetooth data 
Left USB connector 
Left ambient light sensor 


Fan (left) cable (to logic board) 


Power/control for left fan 


Fan (right) cable (to logic board) 


Power/control for right fan 


Hard drive flex cable (to logic board) 


Hard drive control, data, and power 


Inverter cable (to inverter board in display 
panel assembly) 


High voltage for backlight 


Inverter cable (to logic board) 


Display backlight control 


Keyboard backlight cable (on top case) 


Power to keyboard backlight LEDs 


Keyboard flex cable 


Keyboard data and status lines 


LVDS cable (from display panel assembly) 


Video data to display panel 


Main battery cable 


Connects main battery to logic board 


Modem flex cable (to logic board) 


Modem control and data 


PC Card cage flex cable (to logic board) 


PC card data and power 


Power Button cable 


Power-on signal 


RJ-11 cable (to modem) 


Analog phone signal 


Sleep LED cable (to sound board) 


Power to sleep LED 


SuperDrive flex cable (to logic board) 


SuperDrive data and control signals 


Top case flex cable (to logic board) 


Keyboard data and status 
Power-on signal 

Power to keyboard backlight LEDs 
Trackpad data and power 


Trackpad flex cable 


Trackpad data and power 



2 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 



Potential flex cable and connector issues. 

ZIF connector locking Bar 

The locking bar holds the flex cable into the connector. The connector will not work 

properly if any of the following situations exist: 

• The locking bar is not completely pushed into the socket on both sides. 




• The locking bar is broken or missing. 
Important: In this case the board must be replaced. 




General Information 



PowerBook G4 (1 7-inch 1 .33GHz) Troubleshooting - 3 



The cable is not secured straight. 

Make sure that the alignment mark, if present, or metal edge of the contacts run parallel to 
the connector. If the flex cable is inserted crooked, some signals may not be connected or 
signals may short together. 



'1 




13 



- ■ 



i- 






ii_1U 



Broken connectors on the flex cable 



Some flex cables have connector plugs or sockets attached at their ends. These 
connectors are fragile and their connections can easily break away from the flex cable if 
the connector end is bent or too much force is used when disconnecting, making them 
unusable. Some of these flex cable connectors may have a tab or pull loop to help remove 
them. Those without can be removed by carefully rocking them from side to side. 

Important: Do not bend the connector ends of these flex cables or pull up along the 
narrow end of the connector. 

Check to make sure that no part of the connector has separated from the cable. 



4 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 



Cables nicked or crimped 

For cables in the bottom case assembly routed along the front left edge, left side and 
display clutch areas, check whether the wire insulation has been nicked (exposing bare 
metal), severed or crimped. If wire insulation has been nicked but the wires are still intact, 
insulate it with Kapton tape. 




General Information 



PowerBook G4 (1 7-inch 1 .33GHz) Troubleshooting - 5 



Hardware Troubleshooting Tools and Tips 

Apple Hardware Test 2.0.6 (AHT) 

Starting with the PowerBook G4 (17-inch), the Apple Hardware Test software will be 
incorporated into the Software Install and Restore DVD. There is no separate CD for this 
diagnostic. 

Previously, the C key was held down to boot into the diagnostics. With the combined DVD, 
this action will boot into the software restore section of the disk. In order to access the 
AHT on the DVD follow these steps: 

1 . Insert the DVD named "PowerBook G4 15-inch and 17-inch Software Install and 
Restore" that came with your computer. 

2. Hold down the Option key and restart the computer. 

3. Click Apple Hardware Test volume in the startup manager. 



















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4. Click the arrow that points to the right. 

5. Follow the on-screen instructions. 

Note: Apple Hardware Test 2.0.1 is not backwards compatible with PowerBook computers 
prior to the PowerBook G4 (1Ghz/867Mhz). 

Apple Service Diagnostic (ASD) 

MacTest Pro software does not work on this computer since the PowerBook G4 (17-inch) 
is a Mac OS X only system. Apple System Diagnostic (ASD) is the replacement and can 
be downloaded from Knowledge Base article 112125: Service Diagnostics Matrix. 

Important: ASD is not compatible with PowerBook computers prior to the PowerBook G4 
(1GHz/867MHz). 



6 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 



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General Information 



PowerBook G4 (1 7-inch 1 .33GHz) Troubleshooting - 7 



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19:01:29 Fireffire: PHY register test 
06/11/02 19:01:35 * TESTIHB PASSED # 






Apple Service Diagnostic Test log tab 

Resetting the Power Manager Unit (PMU) 

The PMU reset button has been removed from the logic board. Use the following key 
combination procedure or the PMU Reset pad (see PMU NMI and PMU Reset pads on 
logic board, below). 

1 . If the computer is on, turn it off. 

2. Reset the power manager by simultaneously pressing and then releasing Shift- 
Control-Option-power button. Do not press the fn (Function) key while using this 
combination of keystrokes. 

3. Wait 5 seconds. 

4. Press the power button to restart the computer. 



8 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 



Power-on pads on logic board 

With the top case removed, the power-on button is disconnected. Instead of having to 
reconnect the top case to turn on the system, there are two pads on the logic board when 
shorted together (with a tool like the head of a flat blade screwdriver) is the equivalent to 
pushing the power-on button. 

These pads are located about 5cm left of the back left corner of the optical drive, 1-1 /2cm 
above the notch for the top case flex cable. It is marked POWER BUTTON. The pads are 
separated with a vertical white line. 

Note: The component designators my be different, but the location of the pads are the 
same as illustrated. 




General Information 



PowerBook G4 (1 7-inch 1 .33GHz) Troubleshooting - 9 



PMU NMI and PMU Reset pads on logic board 

In addition to the power-on button pads on the logic board, there are pads for PMU NMI 
and PMU reset. These buttons work when their pads are shorted together (with a tool like 
the head of a flat blade screwdriver). They are marked PMU NMI and PMU RESET. The 
pads are separated with a white horizontal line between the pads. 

These pads are located about 1cm left of the back left corner of the optical drive. 




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Caps lock LED power check 

There are situations when the system is giving indications that it is shut down (no hard 
drive access, screen is dark, no fan, and so on). However, the logic board may still be 
running. In this case, the logic board is drawing power and generating heat. 

Warning: In this situation, if the computer is put in an enclosed environment like a 
carrying bag, the computer can overheat. 

Check this situation by pressing the caps lock key. If the LED glows, the PMU is running on 
the logic board. After pressing the caps lock key and perhaps other methods of waking it 
up fails, hold the power button down for six seconds to force a shut down of the computer. 
Restart the system to check if it boots up normally. 



10 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 



Software Troubleshooting Tips and Tools 

Mac OS X only 

Starting with the PowerBook G4 (17-inch), the system will no longer boot into Mac OS 9. 
Mac OS 9 applications can still be used, but only in the Mac OS X classic mode. 

In locations such as the Startup Disk system preference pane, a Mac OS 9 folder will not 
show up as an option. 

Login window and account 

Mac OS X requires at least one user account to be established. This is the Administrator's 
account. By default, the Accounts system preference pane has the "Log in automatically 
[Admin's name]" check. This automatic login setting allows the system to boot into the 
Finder without having a log-in prompt. 

However, if this box is not checked, you will need a password to get to the Finder. In 
addition, you will need to create a user account after you re-install system software. 

Customer forgot password 

If the customer forgot the password for the computer: 

1 . Insert the Software Install and Restore DVD. 

2. Restart the computer while holding down the C key on the keyboard. 

3. When the installer appears, chose Reset Password from the Installer menu 

4. Follow the on-screen instructions. 

Safe Mode 

Safe Mode is the state Mac OS X is in after a Safe Boot. A Safe Boot is a special way to 
start Mac OS X when troubleshooting. Starting up into Safe Mode does three things to 
simplify the startup and operation of your computer: 

1 . It forces a directory check of the startup (boot) volume. It is identical to using Disk 
Utility's Repair Disk or the fsck -fy terminal command. 

2. It loads only required kernel extensions (some of the items in /System/Library/ 
Extensions). 

3. It runs only Apple-installed startup items (some of the items in /Library/Startup Items 
and /System/Library/Startup items - and different than login items). 

Taken together, these changes can work around issues caused by software or directory 
damage on the startup volume. 

To start up into Safe Mode (to Safe Boot), do this: 
General Information PowerBook G4 (17-inch 1.33GHz) Troubleshooting - 



1 . Be sure the computer is shut down. 

2. Press the power button. 

3. Immediately after you hear the startup tone, press and hold the Shift key. 

Note: The Shift key should be held as soon as possible after the startup tone but not 
before. 

4. Release the Shift key when you see the screen the gray Apple and progress indicator 
(looks like a spinning gear). 

During the startup, you will see "Safe Boot" on the Mac OS X startup screen (shown 
below). To leave Safe Mode, restart the computer normally, without holding any keys 
during startup. 




Mac OS X 



Starting timed execution services 
Safe Boot 



Knowledge Base Articles 

These troubleshooting articles can be searched from http://www.apple.com/support. 

106692 Mac OS X: Troubleshooting Installation and Software Updates 

106693 Mac OS X: Troubleshooting Installation From CD-ROM 



12 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



General Information 




Hardware Symptom Charts 



How to Use the Symptom Charts 

The Symptom Charts included in this chapter will help you diagnose specific symptoms 
related to the product. 

The steps to solve a symptom are listed sequentially. You might not need to perform every 
step before the symptom is solved. Start with the first step, and then test for the symptom. 
If the symptom persists, replace any modules you removed, go to the next step, and test 
again. Continue down the list until the symptom is solved. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Power Adapter Note 

The system was designed to use the Apple 65-Watt Portable Power Adapter that came 
with your computer. The previous 45-Watt Apple power adapter for PowerBooks is plug 
compatible, but it may not provide sufficient power during some activities and power may 
be drawn temporarily from the battery. You can identify the Apple 65W Power Adapter by 
its markings (see photo). 





., 





Under low battery or no battery situations, the 45 watt power adapter may not be able to 
provide enough power to properly support the system. 

Although you may have used the 45 watt adapter with a PowerBook G4 (1Ghz/867Mhz) 
without trouble, the peak power requirements of the PowerBook G4 1 7-inch series is much 
higher and will have a higher chance of encounter compatibility issues. 



14 - PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



Hardware Symptom Charts 



Startup 

The computer will not power on (no fan movement, hard drive spin up and 
display is not lit) 

1 . Remove any connected peripherals and eject any PC card. 

2. Check that the battery has enough charge to start the computer by pressing the button 
next to the LEDs on the battery. At least one LED must light solid (not flashing). 

3. Connect a known-good Apple 65W Portable Power Adapter (661-1798) and power 
cord or plug to a known-good power outlet; make sure the DC plug is firmly inserted. 
The DC plug should light up, if not, replace DC-in board. 

Important: The Apple 65W Portable Power Adapter is highly recommended to be 
used with the PowerBook G4 17-inch series computers. The adapters can be 
identified by 65W in the name and markings, and the metal securing-stud on the plug 
connector. Although previous 45W power adapters (see Knowledge Base article 
88231 PowerBook and iBook: Apple Power Adapter) are plug compatible with the 
PowerBook G4 17-inch series, it may not provide sufficient power during some 
activities and power may be drawn temporarily from the battery. 

4. Try powering up without the battery installed (only works with 65W power adapter). 

5. Perform the keyboard PMU reset procedure described in the Troubleshooting Aid 
section. 

Warning: Resetting the power manager will permanently remove a RAM disk, if 
present, and all of its contents. You will also need to reset the date and time 
(using the Date &Time system preference pane). 

6. Press Caps Lock key to see if key light comes on. If it does, hold power button down 
for six seconds to shut down the computer and restart. 

7. If it still doesn't start, verify power button cable is connected properly to top case flex 
cable assembly and that the flex cable is connected correctly to the logic board, if 
power button is not functioning correctly or damaged, replace the top case. 

8. Disconnect keyboard completely. Inspect connectors. Restart with keyboard 
disconnected. 

9. Remove any additional RAM. 

10. Remove AirPort Extreme Card. 

1 1 . Verify DC-in board cable is securely connected. 

12. Try known-good DC-in board. 

13. Replace logic board. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Memory error message "The built-in memory test has detected an error" 
appears on the screen 

1 . Run Apple Service Diagnostic Test. Note: If the failure is intermittent, run Apple 
Service Diagnostic Test in loop mode (check looping options under Test Controls tab 
and select only the RAM test under the Select Tests tab) for an extended time to test 
the memory. 

2. If the test can't find the memory or finds bad memory, inspect the bad DIMM. Verify 
proper memory is being used. The PowerBook G4 17-inch series uses PC2700 (also 
called DDR333) DDR SDRAM SO-DIMMs with a maximum height of 1 .25-inch (30 
mm). If improper memory is being used replace it. Otherwise, try reseating the DIMM 
and retest. If still reported as bad, replace it. 

3. Check the memory connector for damage (retention arms broken, connectors bent or 
missing, connector lifted from logic board). If damage is detected replace the logic 
board. 



16 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Blue screen appears (a spinning disc cursor may also be visible), 
Prohibitory Sign appears, 

Restart dialog box appears (Mac OS X 10.2 kernel panic window), or 
Gray screen during startup 




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Prohibitory Sign 



Vou need to restart your computer Hold down the Power button 
for several seconds or press the Restart button, 

Veuillez redemarrer votre ordinateur Maintenez la touche de 
demarrage enfoncee pendant plusieurs secondes ou bien appuyez 
sur le bouton de reinitialisation. 

Sie mtissen Ihren Computer neu starten. Halten Sie dazu die 
Einschalttaste einige Sekunden gedruckt oder drucken Sie die 
Neustan-Taste. 



Kernel Panic dialog box 

1 . Make sure all external devices are disconnected and any PC card ejected. If kernel 
panic goes away, troubleshoot the external device by reconnecting each device until 
the panic occurs. 

2. If there are two RAM cards installed in the expansion slots, remove the top card and 
restart. 

• If symptom repeats, replace bottom card with known-good RAM card. 

• If symptom does not repeat, replace top RAM card with known-good RAM card and 
restart. 

For assistance in software troubleshooting, go to Knowledge Base article 106464: Mac 
OS X: Troubleshooting a Startup Issue. 

Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting - 



Flashing question mark appears on the screen 

Note: This system will only boot the Mac OS X system that shipped with this computer or 
later. It does not support booting into Mac OS 9. 

1 . Start up from the software install and restore DVD that came with the computer (hold 
down the "C" key during restart). 

2. When the Installer opens, from the Installer menu, select Open Disk Utility. 

3. When the Disk Utility opens, on the left hand side, all disk and volumes are listed. If 
you don't see the internal hard drive, the system is not recognizing it. Skip to step 4. 
Otherwise, select the First Aid tab and follow the instructions to verify the hard disk, 
and repair if needed. Restart the computer. 

4. If the hard drive is not recognized, check the hard drive flex cable for damaged 
connectors, and if bad replace the hard drive flex cable. 

5. Reseat the hard drive flex cable. If still not recognized, replace the hard drive. 

Important: If the computer is under warranty and data recovery is required, refer to 
Knowledge Base article 31077: DriveSavers: Hard Drive Data Recovery & Warranty 
Implications, for important information. 

6. Reinstall system software using the software install and restore disc. 

Note: Don't forget to install both the Mac OS X and Applications and Classic 
software. This operation is completed with two separate installs. Restore disc images 
are available at http://service.info.apple.com. Select "Disc Images." 

Computer begins to power up, the fan and hard drive are spinning, pressing 
caps lock key and LED turns on, but there is no startup chime or video 

1 . Reset the power manager by using the keyboard sequence. Wait five seconds before 
continuing. Press the power button to start the computer. 

Warning: Resetting the power manager will permanently remove a RAM disk, if 
present, and all of its contents. You will also need to reset the date and time 
(using the Date &Time system preferences pane). 

2. Replace the logic board. 



18 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



System shuts down intermittently 

Important: This issue can be a result of not using the 65W power adapter with the 
PowerBook G4 17-inch series computers. Confirm with the customer which adapter they 
were using when having this problem. The adapter can be identified by 65W in the name 
and markings, and the metal securing-stud on the plug connector. 

1 . Disconnect all external peripherals and eject any PC card. 

2. Make sure a known good fully charged battery is fully inserted. Check both battery 
latches are fully engaged and are not broken or getting caught before fully catching. 
Check battery connection to logic board. 

3. Make a visual inspection of the battery connector in the battery bay. Make sure all 
blades are visible and not bend. If damaged replace the battery connector. 

4. Make sure system is not over heating, the air vents are clear and unit was not used on 
a soft surface. 

5. Check that the fan cables are connected and the fans are operational. 

6. Make sure all feet are still on the system bottom. 

7. Check that the thermal material between the heat exchanger and logic board is in 
contact with both by unscrewing the logic board screws and gently pulling up on the 
left side of the board to verify resistance caused by adhesion from the thermal 
material. If not, new thermal materials for the processor, control ASIC, and video chip 
must be reinstalled (see Logic Board Take Apart chapter). 

8. Remove the battery and connect known-good 65W power adapter (661 -1 798) and 
power cord or plug to a known-good power outlet; make sure the DC plug is firmly 
inserted. The DC plug should light up, if not, replace DC-in board. 

9. Verify DC-in board cable is securely connected and cable shows no signs of wear. 

10. Try known-good DC-in board. 

1 1 . Replace the logic board. 

System shuts down almost immediately after startup 

1 . Disconnect all external peripherals and eject any PC card. 

2. Make sure a known good battery is fully inserted and is charged. 

3. Check battery connection to logic board. 

4. Replace the logic board. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Application Quits, Kernel panic or other booting problems 

1 . If a specific application quits, replace the application. Verify the application is 
compatible with OS X. 

2. Clear parameter RAM. Hold down Command-Option-P-R during startup until you hear 
a second startup chime. 

3. Run Disk Utility from the Software Install and Restore DVD. 

4. Perform a clean install of system software with the software install and restore disc 
that came with the computer. 

Note: Restore disc images are available at http://service.info.apple.com. Select "Disc 
Images." 

5. Reboot system. 

6. Run Apple Service Diagnostic in loop mode (Control-L) for an extended time to test 
the memory. If the test finds bad memory, replace the DIMMs one at a time and test 
until all bad DIMMs are replaced with known-good modules. 

7. Replace the logic board. 

Error Beeps 

The computer automatically performs a power-on self test when it is turned on after being 
fully shut down (not a restart). This section describes what to do if beeps are heard during 
the startup. 

Note: The PowerBook G4 17-inch series uses PC2700 (also called DDR333) DDR 
SDRAM SO-DIMMs with a maximum height of 1 .25-inch (30 mm). Refer to Memory Card 
Take Apart chapter for removal and installation. 

Computer beeps once at startup 

1 . One beep means that no RAM is detected. 

Note: There is no RAM on the logic board itself, so the computer will beep if no 
memory is installed in at least one of the RAM slots. 

2. Put the original RAM that came with the computer back in, or put in known-good and 
compatible RAM and restart. 

• If symptom does not repeat, replace RAM card(s). 

• If symptom repeats, replace logic board. 



20 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Computer beeps twice at startup 

1 . Two beeps means that EDO memory is installed in the RAM expansion slot. The 
PowerBook does not accept EDO memory. 

2. Replace RAM card(s) with known-good and compatible RAM and restart. 

• If symptom repeats, replace logic board. 

Computer beeps three times at startup 

1 . Three beeps means that no RAM banks passed memory testing. 

2. If a RAM card is installed in the upper expansion slot (if not, skip to next step), remove 
it and restart. 

• If symptom does not repeat, replace RAM card. 

• If symptom repeats, replace RAM in lower RAM slot with known-good and 
compatible RAM card and restart. If symptom repeats, replace logic board. 

3. If a RAM card is not installed in the upper expansion slot, replace RAM in lower RAM 
slot with known-good and compatible RAM card and restart. 

• If symptom repeats, replace logic board. 

Computer beeps four times at startup 

1 . Four beeps indicates a bad checksum for the remainder of the boot ROM. The ROM 
(which is located on the logic board) is bad. 

2. Replace RAM card(s) with known-good and compatible RAM and restart. 

• If symptom repeats, replace logic board. 

Related Knowledge Base articles: 

58442: Power On Self-Test Beep Definition - Part 2 

95132: PowerBook G4: Installing or Replacing Memory 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



AirPort Extreme Card 

AirPort Extreme Card not recognized 

1 . In Mac OS X, use Software Update in system preferences or see the Apple Software 
Updates web page to make sure the latest version of AirPort Extreme software is 
installed. 

2. Restart the computer. 

3. Open AirPort in system preferences and make sure AirPort is on and Base Station is 
selected. 

4. Check the AirPort Extreme Card flex cable connection to the logic board. Check that 
the connector has not peeled off the flex cable. Also check that the connector on the 
logic board has not lifted. 

5. Remove and reinstall the AirPort Extreme software. 

6. Replace with known-good AirPort Extreme Card. 

7. Replace logic board. 

AirPort connection is slow 

1 . Move computer closer to AirPort Base Station or other AirPort device. 

2. Too many users are accessing network at the same time causing heavy network 
traffic. To improve network connection speed, add additional AirPort Base Stations. 

3. Check for other changes in the environment that may cause interference with the 
AirPort signal. 

4. Use Software Update in system preferences or see the Apple Software Updates web 
page to make sure the latest version of AirPort Extreme software is installed. 

5. Restart the computer. 

6. Check the AirPort Extreme Card flex cable connection to the logic board. 

7. Check the connection on both ends of the AirPort Extreme Card antenna jumper 
cable, if loose, reconnect and test again. 

8. Check the AirPort Extreme Card antenna jumper cable for damaged insulation or a 
crimped cable. If bad, replace antenna jumper cable. 

9. Replace with known-good AirPort Extreme Card. 

10. Check AirPort Extreme antenna wire coming from display panel for nicked insulator or 
crimped wire. If bad, replace display panel assembly. 

1 1 . Replace logic board. 



22 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Battery 

Battery will not eject 

1 . Flip over the unit and slide both battery latches towards the back of the system, 
exposing two orange labels. The latches should stay in an open state. 

2. If the battery does not pop up, use a small plastic flat-blade tool to pry up the battery 
around the battery latch. 

3. Verify proper latch operation, by exercising the latch. If it does not move smoothly or 
evenly, replace the bottom case. 

4. If the latch does exercise correctly, verify that the customer is not installing the battery 
with excessive force or the body of the battery has not been deformed around its 
perimeter. 

Note: The aluminum plate on the battery is a cosmetic cover. The battery is 
contained within the plastic housing to which the plate is attached. If the battery is 
dropped the plate can deform, especially around the edge near the metal plate. If the 
metal plate is bent, use non-marring pliers to bend it back flat. 

Warning: If the battery plastic housing has been damaged, or the two halves of the 
plastic housing have separated, the battery is unsafe for use. 

5. Try a new battery. 

6. Replace bottom case. 

The battery won't charge 

1 . Remove any externally connected peripherals. 

2. Try known-good power outlet. 

3. Connect known-good 65W power adapter (661-3048) and power cord or plug; make 
sure the DC plug is firmly inserted. The DC plug should light up, if not, replace DC-in 
board. 

If the power adapter light is green, turn over the computer and press the battery 
button. The battery lights should glow green and stay on if the power adapter is 
operating correctly. 

Important: The Apple 65W Power Adapter is highly recommended be used with the 
PowerBook G4 17-inch series computers. The adapters can be identified by 65W in 
the name and markings, and the metal securing-stud on the plug connector. Although 
previous 45W power adapters (see Knowledge Base article 88231 PowerBook and 
iBook: Apple Power Adapter) are plug compatible with the PowerBook G4 17-inch 
series, it may not provide sufficient power to operate the system during some 
activities and may draw power from the battery. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



4. Try known-good battery. If it charges, replace the battery. If doesn't charge, check the 
battery connector and its connection to the logic board. 

5. Replace the battery connector assembly (requires removing the logic board). 

6. Turn off the computer. Perform the keyboard PMU reset procedure described in the 
Hardware Troubleshooting Tools and Tips section. Wait five seconds before 
continuing. Press the power button to start the computer. 

Warning: Resetting the power manager will permanently remove a RAM disk, if 
present, and all of its contents. You will also need to reset the date and time 
(using the Date &Time system preference pane). 

7. Make sure the DC-in cable is firmly connected. Look for damaged insulation or wires. 

8. Replace DC-in cable. 

9. Replace DC-in board. 

10. Replace logic board. 

Bluetooth 

Bluetooth system preferences does not show up under Hardware system 
preferences 

1 . Check the DC-in flex cable's connection to the Bluetooth card and logic board. Make 
sure the flex cable is not damaged, is inserted straight and is completely locked down 
by the locking bar. 

2. Replace Bluetooth card. 

3. Replace the logic board. 

Bluetooth Card not recognized by other devices 

1 . Open Bluetooth in system preferences and make sure under the Settings tab that 
Discoverable is checked. 

2. Check the Bluetooth antenna is connected to Bluetooth card. 

3. Replace with known-good Bluetooth card. 

4. Replace display panel assembly. 

5. Replace logic board. 



24 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Display 

Display latch not working 

Note: When the display is being closed, hooks in the top of the display housing should be 
magnetically pulled down to the latch. When the latch button is pushed, the hook should 
release and retract into the display housing. 

1 . Verify hook operation by using a small low-power magnet to exercise the latch 
mechanism. Make sure hooks are not bent. 

2. If the hook does not operate properly, replace the display panel assembly. 

3. If the latch or latch button does not operate properly, replace the top case assembly. 

When displaying a single color over the screen area, the LCD panel shows one 
or more pixels that are not properly lit 

To determine whether or not the display has an acceptable number of pixel anomalies, 
follow the steps below: 

1 . Set the display image to one of the following colors: all-white display, all-red display, 
all-green display, or all-blue display. Knowledge Base article 1 12125: Service 
Diagnostics Matrix, has the LCD Tester Diagnostic Utility that will generate these 
patterns on the screen. 

2. Using a jeweler's loupe, pocket microscope, or other magnifying device, identify and 
count each pixel anomaly: 

• Bright subpixel anomaly = subpixel that is always on 

• Dark subpixel anomaly = subpixel that is always off 

3. The number of acceptable pixel anomalies for this system is: 
Acceptable Number of Subpixel Anomalies 



Bright 


Up to 4 


Dark 


Up to 6 


Combination 


Up to 8 



4. If the number of subpixel anomalies exceeds the acceptable number listed in the 
above chart, replace the display panel assembly. 

Replace 



Bright 


5 or more 


Dark 


7 or more 


Combination 


9 or more 



Hardware Symptom Charts 



PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



5. If the number of subpixel anomalies is acceptable, explain to the customer that the 
pixel anomalies are within specifications, and no repair is necessary. 

Important: Do not release the specifications to customers. Instead, inform them that a 
certain number of subpixel anomalies are considered acceptable, and these factors apply 
to all manufacturers using LCD technology — not just Apple products. 

When speaking with customers, please use the following explanation: 

Active-matrix LCD technology uses rows and columns of addressable locations (pixels) 
that render text and images on screen. Each pixel location has three separate subpixels 
(red, green, and blue) that allow the image to be rendered in full color. Each subpixel has a 
corresponding transistor responsible for turning the subpixel on or off. 

There are typically millions of these subpixels on an LCD display. For example, the LCD 
panel used in the Apple Cinema HD display is made up of 2.3 million pixels and 6.9 million 
red, green, and blue subpixels. Occasionally, a transistor does not work perfectly, which 
may result in the affected subpixel being turned on (bright) or turned off (dark). With the 
millions of subpixels on a display, it is quite possible to have a low number of faulty 
transistors on an LCD. Therefore, a certain number of subpixel anomalies are considered 
acceptable. Rejecting all but perfect LCD panels would significantly increase the retail 
price for products using LCD displays. These factors apply to all manufacturers using LCD 
technology— not just Apple products. 

Hard Drive 

Internal hard drive will not initialize: 

1 . Start up from the software install and restore disc that came with the computer (hold 
down the "C" key during restart). 

2. When the Installer opens, from the Installer menu, select Open Disk Utility. 

3. If the hard drive is recognized, format it under the Erase tab. 

4. If the hard drive is not recognized, reseat the hard drive flex cable, or replace if 
needed. 

5. If still not recognized, replace the hard drive. 

6. Reinstall system software using the software install and restore disc. 

Important: If the computer is under warranty and data recovery is required, refer to 
Knowledge Base article 31077: DriveSavers: Hard Drive Data Recovery & Warranty 
Implications, for important information. 



26 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Keyboard 

No response from any key on keyboard 

1 . Remove any connected peripherals and eject any PC card. 

2. Attach an external USB keyboard, if it doesn't work, go to step 7. 

3. Turn off the computer. Check the top case flex cable connection to the logic board 
(under the lower RAM, if installed). 

4. Inspect the top case and keyboard flex cable connectors and cables. If the top case 
flex cable looks bad, replace top case. 

5. Start up from the software install and restore disc that came with the computer (hold 
down the "C" key during restart, if possible) to verify that it is not a software problem. 

6. Replace keyboard. 

7. Replace logic board. 

No keyboard illumination 

1 . Go to Keyboard system preference pane and make sure the "Illuminate keyboard in 
low light conditions" check box is checked. Try using system in a dimly lit environment. 

Note: The keyboard illumination is not bright enough to be seen in most well lit spaces. In 
order to view the key being illuminated, the ambient light needs to be dim. 



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Hardware Symptom Charts 



PowerBook G4 (17-inch 1.33GHz) Troubleshooting 



2. Check the keyboard backlight cable connection to the top case flex cable and the top 
case flex cable connection to the logic board. If the connections look good, change the 
top case. 

3. Replace logic board. 

Half keyboard is illuminated. 

1 . Check the keyboard backlight cable connection to the top case flex cable and the top 
case flex cable connection to the logic board. If the connections look good, change the 
top case. 

Microphone 

The microphone is not working 

1 . Check the Sound system preference pane and verify the selection under the Input tab 
is for the built-in microphone. 

2. Check the signal level and level meter and adjust the gain. 

3. Reset PRAM (Press the power button, then hold down the Option-Command-P-R 
keys until you hear the startup chime at least one additional time after the initial 
startup chime). 

Warning: Resetting the PRAM will permanently remove a RAM disk, if present 
and all of its contents. You will also need to reset the date and time (using the 
Date &Time system preference pane). 

4. If there is no sound output from the internal speaker as well as the microphone not 
working, verify cable connections. 

5. Replace sound board flex cable. 

6. Replace the sound board. 

7. Replace the speaker assembly. 

8. Replace the logic board. 



28 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Modem 

No modem dial tone 

1 . Check that the correct modem is selected in the Network Port Configuration section of 
the Network system preferences. 

2. Verify known-good analog (not digital) telephone line. 

3. Verify known-good RJ-1 1 telephone cable. 

4. Verify RJ-1 1 cable is not plugged into Ethernet port. 

5. Inspect RJ-1 1 connector and modem port for pin damage. 

6. Verify RJ-1 1 telephone cable is firmly installed in the modem port. 

7. If using Apple Remote Access, select Ignore Dial Tone in the Modem control panel. If 
the modem connects with this settings selected, try another phone line. If using a 
terminal or communications program, enter atxl to disable tone detection. To reset the 
modem back to the factory settings, enter atz. 

8. Check RJ-1 1 wires to DC-in board. Replace if bad. 

9. Verify RJ-1 1 wire's 2-pin connectors are plugged into correctly. 

10. Check modem flex cable is properly installed. Replace cable if needed. 

11. Replace modem. 

12. Replace logic board. 

Modem does not respond (can hear dial tone) 

1 . Check that the correct modem is selected in the Network Port Configuration section of 
the Network system preferences. 

2. Check modem application is properly configured. 

3. Check modem flex cable is properly installed. Replace cable if needed. 

4. Replace modem. 

5. Replace logic board. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Optical Drive 

The optical drive does not accept CD or DVD disc (mechanical failure) 

1 . Verify disc is not warped and is a 1 2 cm circular disc. 

2. Check that a small disc is not stuck inside, or other foreign objects. Remove drive from 
system to extract disc. 

3. Verify disc is pushed almost all the way into the slot. 

4. Check the optical drive flex cable. 

5. Replace optical drive. 

The disc icon does not show up on desktop, or a dialog box appears to 
initialize disc, when inserting a read-only disc 

1 . Verify the correct type of disc is being used. 

2. Use Software Update system preference pane to check if there is updated firmware. 

3. Try cleaning the disc. If it is dirty or scratched, it may not mount. 

4. Try a different disc. 

5. Replace optical drive cable. 

6. Replace optical drive. 

Difficulty writing to optical media 

1 . Verify the correct type of disc is being used. 

2. Try a different brand or speed of CD-R disc. 

Note: Some brands of 24x or 32x CD-R media may not work with the SuperDrive. 

Note: There are two factors in the ability for the optical drive to write to media. First, there 
are varying qualities of blank optical media. Some media are made to such low 
specifications that the ability for the drive to write to it is marginal. 

There are variations in optical media even under the same brand. Some brands source 
their optical media from a variety of manufacturers, so there may be variations in the 
quality. 

Second, an optical drive that supports writing to a CD-R/RW or DVD-R/RW disc requires a 
special writing algorithm for discs from different disc manufacturers. There are hundreds of 
disc manufacturers, it is impossible to implement writing algorithms for each disc 
manufacturer. Usually, drive manufacturers implement special writing algorithms for discs 
from major disc manufacturers. For discs that are not supported by the drive with special 
writing algorithms, the drive will use a generic writing algorithm to write the disc. In this 
case, the writability and readability may not be optimal. 

3. Replace optical drive flex cable. 

4. Replace optical drive. 

30 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



PC Card 

PC Card will not insert into the PC Card slot 

1 . Make sure the PC Card eject button is in, before attempting to insert a PC Card. 

2. Make sure the PC Card is right side up (cards are keyed and cannot be inserted 
upside down). 

3. Verify the PC Card is not warped or damaged in any way; if so replace the card. 

4. Try a different PC Card. 

5. Carefully raise the PC Card slot cover and check for a foreign object inside the slot. 

6. Check to see if the AirPort Extreme Card antenna wire is protruding up into the PC 
Card slot opening from below. If so, open the computer to gain access to the AirPort 
Extreme Card location and reposition the antenna cable so that it does not protrude 
into the PC Card slot area (see AirPort Extreme Card Take Apart chapter). 

7. If the slot cover is preventing the card from being inserted, replace the top case. 

8. Replace PC Card Cage. 

PC Card does not mount to the desktop 

1 . Make sure the PC Card has its drivers installed. 

2. Check if a known good PC card works in this slot. The PC card may be bad. 

3. Check the PC card cage flex cable connection to the logic board. 

4. Replace the PC card cage. 

5. Replace the logic board. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Ports 

A USB port is not recognizing devices 

1 . Completely shut down, then press the power button to start the computer. 

2. Use Software Update system preferences to verify that the latest software is installed. 

3. For USB, test ports with an Apple keyboard or mouse. If the left port is not recognized 
check the DC-in flex cable's condition and connection. If the right port is not 
recognized check the backup battery flex cable's condition and connection. 

4. If the USB flex cables are fine, replace the DC-in board for the left USB port or the 
backup battery board for the right port. 

5. Use Apple System Profiler to verify that the computer is recognizing the bus. If not 
replace the logic board. 

A USB device not recognized by computer 

Note: If you are trying to use a serial device with a USB/Serial adapter, check with the 
manufacturer of the adapter for compatibility. 

1 . Completely shut down, then press the power button to start the computer. 

2. Verify current driver for the device is installed. 

3. If a camera, turn on camera after initiating download with camera application. 

4. Try the other USB port. 

5. Try different USB device on same port. 

6. Eliminate chain by plugging in only one peripheral. 

7. Try known-good Apple USB keyboard or mouse to verify the port is working properly. If 
the left port is bad, check the DC-in board flex cable and connections. If the right port 
is bad, check the backup battery flex cable and connections. 

8. If the USB flex cables are fine, replace the DC-in board for the left USB port or the 
backup battery board for the right port. 

9. Replace logic board. 

A Fire Wire port is not recognizing devices 

1 . Test the FireWire 400 and FireWire 800 ports by connecting to another computer 
using FireWire Target Disk Mode. 

Refer to Knowledge Base article 58583: How to Use FireWire Target Disk Mode. 

Important: When in FireWire Target Disk Mode, use only one FireWire port at a time. 
Otherwise you risk corrupting the internal hard drive volume. 

2. Verify that drivers are installed properly for third party, if needed. 

32 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



3. Make sure the cables are firmly attached. 

4. Try a different cable. 

5. If self powered make sure that the power supply is connected and device's LED 
indicates that it is getting power. 

6. Replace logic board. 

Sound 

No sound heard and the Speakers section of the Sound system preference 
pane indicates that an external device is plugged in (to the headphone jack or 
USB ports) 

1 . If there is nothing plugged into the headphone jack or USB ports, under the Output tab 
of the Sound system preference pane should be set to the internal speakers. 

2. If not, and if nothing is plugged in, try plugging in headphones or external speakers. 
Restart the computer. Remove the device. 

3. Reset PRAM (Press the power button, then hold down the Option-Command-P-R 
keys until you hear the startup chime at least one additional time after the initial 
startup chime). 

Warning: Resetting the PRAM will permanently remove a RAM disk, if present, 
and all of its contents. You will also need to reset the date and time (using the 
Date &Time system preferences pane). 

4. Check the sound board flex cable to see if the cable is properly seated, the connection 
is good, and there is no cable damage. 

5. Replace sound board. 

6. Replace logic board. 

No sound from speaker(s) 

1 . Use the Software Update system preference pane to verify that the latest audio 
update has been installed. 

2. Press the F3 key (with the fn key pressed and not pressed) to verify that mute mode is 
not enabled. 

3. Press the F4 or F5 key (with the fn key pressed and not pressed) to check the volume 
setting. 

4. Verify no external speakers or headphones are plugged in. 

5. Check the speakers tab on the Sound control panel to confirm that the software is 
correctly seeing that there are no external speakers or headphones connected. 

6. Shutdown computer and restart. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



7. Reset PRAM (Press the power button, then hold down the Option-Command-P-R 
keys until you hear the startup chime at least one additional time after the initial 
startup chime). 

Warning: Resetting the PRAM will permanently remove a RAM disk, if present, 
and all of its contents. You will also need to reset the date and time (using the 
Date &Time system preference pane). 

8. Verify that the speaker cable is connected properly to sound board. 

9. Check speaker cable. Verify left and right cable connections. 

10. Check with headphones or external speaker, if audio is heard, replace speaker 
assembly. 

1 1 . Replace sound board flex cable. 

12. Replace sound board. 

13. Replace the logic board. 

Distorted sound from speakers 

1 . Verify sound is correct with external speakers/headphones. If sound is correct, check 
speaker wire and connections. 

2. In Sound system preference pane, check balance. 

3. Compare same sound with two different units to make sure that sound is actually 
distorted. 

4. Check speaker wire. If damaged, replace speaker assembly. 

5. Replace sound board. 

6. Replace sound board flex cable. 

7. Replace logic board. 



34 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Trackpad 

The cursor does not move when you are using trackpad 

1 . Verify that no USB device is connected. 

2. Boot from the Software Install and Restore DVD to verify that it is not a software 
problem. 

3. Reset the power manager by pressing the key combination Control-Option-Shift 
Power. 

Note: Make sure you do not hold down the "fn" key when resetting the power 
manager. 

4. Check top case flex cable connection to the logic board (under the lower RAM, if 
installed). 

5. Check trackpad cable and connection to the top case. 

6. Replace top case. 

7. Replace logic board. 

The cursor intermittently does not move or moves erratically 

Note: User must touch with the surface of only one finger at a time and point directly down 
on the trackpad surface. 

1 . Clean trackpad surface (with computer off, using a non-static-inducing material). 

2. Completely shut down, then press the power button to start the computer. 

3. Reset the power manager by pressing the key combination Control-Option-Shift- 
power. 

Note: Make sure you do not hold down the "fn" key when resetting the power 
manager. 

4. Try unit on battery power. If problem goes away, replace power adapter. 

5. Place the Software Install and Restore DVD in the optical disc drive, press the start 
button and hold down the "C" key. Check the cursor movement, to see if the problem is 
software. 

6. Check top case flex cable connection to the logic board (under the lower RAM, if 
installed). 

7. Check trackpad cable and connection to the top case. 

8. Replace top case. 

9. Replace logic board. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



Video 

No display, or dim display, but computer appears to operate correctly 

1 . Remove any connected peripherals. 

2. Make sure F1 key is not stuck down. 

3. Press the F2 key (with the fn key pressed and not pressed) to increase the screen 
brightness settings. 

4. Reboot the computer — hold down the Control and Command keys and press the 
Power button to restart the computer. Or, press and hold the Power button for 5 to 10 
seconds to shut down the computer, then press the Power button to restart. 

5. Important: The Apple 65W Power Adapter is highly recommended be used with the 
PowerBook G4 17-inch series computers. The adapters can be identified by 65W in 
the name and markings, and the metal securing-stud on the plug connector. Although 
previous 45W power adapters (see Knowledge Base article 88231 PowerBook and 
iBook: Apple Power Adapter) are plug compatible with the PowerBook G4 17-inch 
series, it may not have sufficient power to operate the system during some activities 
and may draw power from the battery. 

6. Verify inverter cable and LVDS cable connections are seated properly and that the 
cables are not damaged. 

7. Replace display panel assembly. 

8. Replace logic board. 

Computer appears to work, but no video on external device connected to the 
TV out port (S-video out port) 

1 . The device must be connected to the S-video port while the PowerBook is sleeping or 
off for the device to be recognized. 

2. Verify monitor that is used in testing is known-good and is supported by this computer. 

3. Try different cable(s). 

4. Replace logic board. 

No video on an external VGA device connected to the external monitor (DVI) 
port 

1 . Verify monitor that is used in testing is known-good and is supported by this computer. 

2. Try another DVI-to-VGA adapter cable. 

3. Restart the computer and test again. 

4. Replace logic board. 



36 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Misc. Symptoms 

The Date and Time settings reset all the time 

Note: Resetting the power manager or PRAM resets the date and time. 

1 . Do a backup battery test: 

• Set the date and time. 

• Perform a Shut Down from the Apple menu. 

• Remove the main battery and disconnect the power adapter for 10 minutes. 

• Connect the power adapter, insert the battery, and power on the computer. 

• If the date and time were lost the backup battery may be dead or discharged. 

• Remove the main battery from the unit and leave the PowerBook plugged in for at 
least 5 hours. 

Note: If a discharged main battery is installed in the computer, recharging the backup 
battery may take up to 48 hours to completely charge. It is okay to use it while it is 
charging. 

• If the date and time still reset, replace the backup battery flex cable. 

2. Replace backup battery board. 

3. Replace the logic board. 

Note: For main and backup battery part numbers, refer to Knowledge Base article 1 1751 : 
Macintosh Family: Batteries and Part Numbers. 

Feet came off the bottom case 

1 . Replace feet using foot replacement kit. 

Sleep LED does not come on when lid is closed 

1 . Put the computer to sleep using the menu option. If the sleep LED goes on, there is a 
problem with lid sensing. If not skip to step 3. 

2. Put a small low-power magnet over the trackpad and move it around. If the unit sleeps, 
replace the top case. If not replace the display panel assembly. 

3. Check that the sleep LED is plugged into the sound board. 

4. Connect a USB mouse. Short the power on pads on the logic board to boot the 
system and use the mouse to sleep from the menu. Measure the voltage at the LED 
connector. If power is present, replace bottom case. 

5. Shut down system. 

6. Check the sound board flex cable is properly connected to the sound and logic 
boards. Make sure the connectors on the flex cable are not damaged. Check the sleep 
LED. 

7. Replace the sound board flex cable. 



Hardware Symptom Charts PowerBook G4 (17-inch 1 .33GHz) Troubleshooting 



8. Shut down system. 

9. Replace sound board. 

10. Replace logic board. 



38 - PowerBook G4 (17-inch 1 .33GHz) Troubleshooting Hardware Symptom Charts 



Service Source 




Views 



PowerBook G4 (17-inch 1.33GHz) 



© 2003 Apple Computer, Inc. All rights reserved. 



Display Panel Assembly 
661-2949 



DC-in/Bluetooth/USB Flex Cable 

922-6068 

DC-in Board Cable 922-5777 

RJ-11 Port Assembly 922-5775 
DC-in Board 922-6063 

Bluetooth Board 922-5833 
Speaker Assembly 922-5773 

Modem Flex Cable 922-4815 

Modem 661-2843 

PC Card Cage Assembly 922-6237 

AirPort Extreme Antenna Jumper 

922-5783 

AirPort Extreme Card Assembly 

661-3044 

Sound Board Flex Cable 922-6065 

Sound Board 922-6062 — 

Hard Drive Flex Cable 922-6220 

Hard Drive 80GB 4200RPM 661-2929 
80GB5400RPM 661-2932 

Hard Drive Bracket Kit 076-0988 

Memory Card 661-2821 



Battery Connector Cable 922-5784 




Clutch Spring End Cap Kit 
(Left & Right) 076-1029 



Keyboard 922-5776 



Top Case Assembly 922-6069 



Ambient Light Sensor 
Dust Covers (Left & Right) 
076-1008 



Logic Board (1.33GHz) 661-2937 

Thermal Pads 076-1033 

Thermal Gel 922-5929 
Torsion Bars 076-1028 
Heatsink Assembly 922-6208 



Optical Flex Cable 922-6221 

DVD-R/CD-RW (Apple SuperDrive) 
661-2931 



Optical Drive Bracket Kit 
076-0989 

Backup Battery Flex Cable 
922-6067 

Backup Battery Assembly 
922-6064 



Bottom Case Assembly 922-6070 

Memory Door 922-5779 
Battery 661-2948